Caithsnotro
Caithsnotro Caithsnotro
  • 03-12-2015
  • Chemistry
contestada

At STP, which 2.0-gram sample of matter uniformly fills a 340-milliliter closed container?

Respuesta :

jamuuj jamuuj
  • 10-08-2018

Answer;

D, Xe (g)

Solution and explanation;

If 2g has a volume of 340ml.

Density is 1000/340*2 = 5.88g/litre.

-This rules out the two solids, choices 2) &3)

If 1 litre has mass 5.88g,

then 22.4 liters (volume at STP) has mass 5.88*22.4 = 131.8g/mol

molar mass Br2 = 80*2 = 160g/mol NO

molar mass Xe = 131.3g/mol = YES.

Answer is Xe

Answer Link

Otras preguntas

What is the value of the figure 2 in the number 3027
Simplify by combining like terms: 3x + 3x + 3x A) 3x3 B) 9x C) 9x2 D) 27x3
Then he rubs a piece of steel across the top of the stick. A. stick B. piece C. steel D. top
Simplify the radical expression by rationalizing the denominator. 4 divided by the square root of 21.
Disruptive selection events select for _______. a. common traits b. genetic uniformity c. camouflage traits d. extreme traits
Show how to multiply 6 x 298 using properties and mental math
List four physical properties of a glass of milk
19 POINTS!!! How did The Prince influence European rulers?A. It convinced many rulers that people have a natural right to self-government. B. It made
Which is not a property of a mineral? a. hardness b. diffraction c. cleavage d. luster
Rectangle EFGH is graphed on a coordinate plane with vertices at E(-3,5), F(6,2), G(4,-4),and H (-5,-1). Find the slopes of each side.